Psych Notes (1)

Psych Notes (1) - Psych100 04/02/200813:57:00

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Psych 100 04/02/2008 13:57:00 (for final review study guide for this chapter) Scientific Method Hypothesis: People seek out the company of others to reduce anxiety. Prediction: What you expect to happen.  A higher proportion of high anxiety  people are going to want to wait with others. Experimental Design o Variables Independent variable: level of anxiety Dependent variable: Measurement of what subj does (choose  one room or the other) o Groups Experimental Control Test (conclusion): 60% high verse 32% low chose to wait with other people. Analysis: Results of the experiment were as predicted. A higher proportion of  high anxiety people chose to wait with other.   o (Cannot say that high anxiety people choose to be around others to  reduce anxiety.) o People tend to draw a conclusion beyond the data.  We cannot  conclude that the theory is true. . there is just more evidence to support  and strengthen the theory. Scientific Research Introduction Experimental research- can be extremely hard to do.  Sometimes it is hard to  manipulate the variables to make it an accurate experiment. (ex: and  experiment that needs to observe the way people act in the real world.) o Scientific method o Experimental design
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o Extraneous variables- things that can effect the dependent variable. Researcher must control these extraneous variables so they  have no effect on the dependent variable. With this experiment some people may be shy or some people  can be outgoing.  To solve this problem you use randomization.  You assign random people and on average the outgoing and  shy people will be evenly divided between the two groups. o Limitations Correlational Research o Not as powerful as experimental research o Correlation- With correlational research it does not justify a causal  claim. Positive- when one variable changes in one direction or the  other, the other variable changes in the same direction. Negative- if as one changes the other changes in the opposite  direction.  (Failing grades are negatively correlated with  classroom attendance.) No correlation- as one move the other has no reliable pattern in  the way it changes. o Problem with correlation is that correlational evidence does not provide  an experimental answer.  All it tells about is correlation. Ex: People who take anti-depressants are more likely to have  suicidal thoughts.  Problem is they are depressed so of course  they have suicidal thoughts. o
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This note was uploaded on 01/24/2011 for the course PSYC 100 taught by Professor Capo during the Spring '08 term at Maryland.

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Psych Notes (1) - Psych100 04/02/200813:57:00

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